High-tower granulation slow release long-effect chlorine base compound fertilizer and preparation method thereof
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A high-tower granulation and compound fertilizer technology, which is applied in the direction of fertilizer mixture, fertilization equipment, application, etc., can solve the problems of unseen literature reports, fertilizer efficiency decomposition loss blocks, atmospheric environmental pollution, etc., and achieve benefits to the soil, atmosphere and Water environment protection, avoiding adverse effects, and uniform nutrient distribution
Active Publication Date: 2012-02-01
STANLEY AGRI GRP CO LTD
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Problems solved by technology
[0002] The nutrient utilization rate of traditional nitrogen, phosphorus and potassium compound fertilizers is only 25%-35%, of which the utilization rate of nitrogen fertilizer is less than 30%, the loss is particularly serious, and it leads to soil pollution and air pollution
[0003] Chinese patent CN 200510102650.8 discloses a melt slurry tower granulation compound fertilizer and its manufacturing method. One of the technical problems to be solved is that the structure of the compound fertilizer produced by the traditional granulation method is relatively loose, the fertilizer dissolves and releases quickly, and the fertilizer efficiency is high. Break down lost blocks, problems with low fertilizer use efficiency
[0008] At present, the high-tower granulated slow-release long-acting chlorine-based compound fertilizer has not yet been reported in the literature
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Embodiment 1
[0073] Embodiment 1 Prepare the high-tower granulation slow-release long-acting chlorine-based compound fertilizer of the present invention according to the following steps
[0076] Accurately weigh 40 parts by weight of urea, put it into a melting tank, heat it to 125°C-138°C, and prepare for primary mixing;
[0077] b. Potassium chloride, ammonium chloride preheating
[0078] Accurately weigh 40 parts by weight of potassium chloride and 20 parts by weight of ammonium chloride, put them into a primary mixing tank, preheat to 40°C to 60°C, and set aside;
[0079] c. Low-temperature eutectic preparation
[0080] Send the molten urea prepared in step a into the first-level mixing tank, mix it with the preheated potassium chloride and ammonium chloride in step b, and then put it into the second-level mixing tank, and mix it evenly. The slurry mixing time is less tha...
Embodiment 2～ Embodiment 7
[0094] According to the method and steps of Example 1, according to the formula in Table 1, the high-tower granulation slow-release long-acting chlorine-based compound fertilizer of the present invention is prepared
[0095] Table 1
[0096] raw material
[0097] The high-tower granulation slow-release long-acting chlorine-based compound fertilizer that embodiment 1~embodiment 7 makes is all applicable to wheat, corn, paddy rice field crop and vegetable and fruit tree application, improves fertilizer utilization rate 10%-23% on average, to The average yield of crops is increased by 6.5%-13.3%, and the average yield of vegetables is increased by 11%-27.5%.
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Abstract
The invention relates to a high-tower granulation slow release long-effect chlorine base compound fertilizer and a preparation method thereof, which belong to mixed fertilizers. Firstly, a high-tower granulation device is used for preparing high-tower granulation urea compound fertilizer particles, then, the paraffin primary covering and the modified zeolite powder surface secondary covering are carried out on the urea compound fertilizer particles to obtain the high-tower granulation urea compound fertilizer particles, and the high-tower granulation urea compound fertilizer particles consist of the following ingredients in part by weight: 35 to 50 of urea, 35 to 45 of potassium chloride and 15 to 20 of ammonium chloride. In the paraffin primary covering process, the paraffin consumption is 0.5 percent to 1.2 percent of the mass of the high-tower granulation urea compound fertilizer particles, and the modified zeolite powder consists of the following ingredients in percentage by weight: 1 to 5 of zinc stearate and 95 to 99 of zeolite powder. The invention provides the high-tower granulation slow release long-effect chlorine base compound fertilizer and the preparation method thereof, and the high-tower granulation slow release long-effect chlorine base compound fertilizer is matched with the high-tower granulation device to be used and has the advantages that the slow release effect is good, the fertilizer nutrient utilization rate is high, the process is simple, the production cost is lower, and the soil, atmosphere and water body environment is favorably protected.
Description
technical field [0001] The invention relates to a high-tower granulated slow-release long-acting chlorine-based compound fertilizer and a preparation method thereof. It belongs to mixed fertilizer. Background technique [0002] The nutrient utilization rate of traditional nitrogen, phosphorus and potassium compound fertilizers is only 25%-35%, and the utilization rate of nitrogen fertilizer is less than 30%. The loss is particularly serious, and it leads to soil pollution and air pollution. [0003] Chinese patent CN 200510102650.8 discloses a melt slurry tower granulation compound fertilizer and its manufacturing method. One of the technical problems to be solved is that the structure of the compound fertilizer produced by the traditional granulation method is relatively loose, the fertilizer dissolves and releases quickly, and the fertilizer efficiency is high. Break down loss blocks, problems with low fertilizer use efficiency. The technical solution adopted is to use h...
Claims
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